function succHeader(headerText){
    $("body").prepend(headerText);
    $("nav .main_nav li").eq(1).addClass("active").siblings().removeClass("active");
}
get("xhr1","user_center_header.html",succHeader);
get("xhr2","aside.html",succAside);
get("xhr2","user_center_footer.html",succFoot);
function succAside(data){
    $(".page-content").html(data+$(".page-content").html());
    $(".page-left .left-content ul li").each(function(){
        $(this).removeClass("on")
    });
    $(".page-left .left-content ul>li.user-management>ul>li").eq(2).addClass("on").siblings().removeClass("on");
}
function succFoot(data){
    $("body>.main").html($("body>.main").html()+data)
}